Shock-absorber.



W. EVANS. SHOCK ABSORBER.

APPLICATION FILED JUNE 30, 1914.

Patented Feb. 16, 1915.

l y FI@ ATTORNEY WILLIAM EVANS, OF OAK LANE, PENNSYLVANIA, ASSIGNOR TO WILLIAM EVANS, JOI-IN I-I. EVANS, AND ROBERT EVANS, A FIRM'. TRADING AS'JUI-IN EVANS SONS, 0F

PHILADELPHIA, PENNSYLVANIA.

SHOCK-ABSORBER.

Specification of Letters Patent.

ljaterrtedFebo 16, 1915.

Application filed June 30, 1914. Serial No. 848,115.

T0 all whom it may concern.'

Be it known that I, VILLIAM EVANS, a citizen of the United States, residing at Oak Lane, in the county of Montgomery and State of Pennsylvania, have invented certain new and useful Improvements in Shock- Absorbers, of which the following is a specification.

My invention relates to certain improvements in constructive arrangement of a shock-absorber for application to motor-cars of the Ford and other types and with means connected therewith for adjusting the shock absorbing spring to readily adapt the said absorber to varying conditions without disassembling the parts thereof; and in such connection my present invention relates more particularly to `the constructive arrangement of the coiled spring within a concealed grease contained housing and operative independently of said housing by means of a hanger connected with a member of the running gear. The housing is suspended and supported in vertical position by means of a removable base journaled to a bolt carrying links coupled to a second-bolt with which one of the terminal members of the motor spring is attached, whereby shocks and jars occasioned either by the direct action of the wheels or otherwise can be eiiiciently equalized and relieved.

The nature, scope and characteristic features of the shock absorber' of my said invention will be more fully understood from the following description taken in connection with the accompanying drawings forming part hereof, in which- Figure 1, is a rear elevational view of so much of a motor-car of the Ford type as illustrated, as will serve to disclose in application thereto a shock-absorber, embodying the essential features of my said invention. Fig. 2, is a vertical central sectional view, partly in elevation, of the absorber, showing the detail arrangement thereof, detached from the motor vehicle or car, and` also showing fully the mode of adjusting quickly and effectively the housed shock-absorbing coiled-spring and the means arranged to be connected with respectively the running gear and motor-spring for actuating and controlling the action of both the said coiled spring and housing concealing the same, movable independent of each other; and

Fig. 3, is an elevational View, partially in broken section of more particularly the movable link connection supporting the housing for said shock-absorbing spring and connection with a terminal of the car or vehicle cross spring.

Referring to the drawings a, is the motorcar having as shown, a leaf cross-spring al, wheels a2 and an axle a3, and which wheels are provided with brake control hubs a4, of any well known constructive arrangement, the form shown being of that of the Ford type.

6, is the shock-absorber of my present invention, consisting of a cylindrical housing 61, having a removable recessed and perforated cap 62, through which depends a threaded bolt 63, carrying a tightening nut 6*, thereon, adapted to be brought into a position so as to bear against the recessed part 65, of the said cap. The bottom of the tubular housing 61, is provided with a removable perforated base 6G, having two depending perforated bars or projections 67 and 68, as illustrated in Fig. 3, mounted on a cross-bolt 69. This bolt carries loose thereon links 610 and 611, and which links are similarly mounted on a second cross-bolt 612, on which is also mounted one of the terminals of the leaf car-spring a1 of the vehicle, as clearly shown in Fig. l. In the housing 6,.is mounted a coiled spring o, abutting at its upper extremity against a recessed or offset gasket or disk 613, and on the opposite side the said threaded tightening bolt 63, engages as clearly shown in Fig. 2, to compress the said coiled-spring o, or to lessen the extent of compression thereof ad Zz'6z'tum within the housing and without affecting said housing. At the opposite extremity, the said spring occupies a position in engagement with a seat e, formed into a hollow tube e1 and extending for some distance vertically into said housing surrounded by said spring beyond the base 6G of said housing, and formed into a curved depending hanger or fixture 614 having an eye to positively engage as shown in Fig. 1, one of the rear wheel hub brake casings a, by means of a bolt 615. It will be understood that the said coil spring is mounted in grease within the said housing. The arrangement of the absorber is such that any shocks or jars incident to the action of the wheels will tend to cause a ceri Vand desire to secure by Letters Patent is In a shock-absorber, a single cylinder, a guide mounted in the lower end of the cylin- :der vand having a depending extension with Copies of this patent may be obtained for ve cents each, by addressing the 1 having as part downwardly means for engaging running.,r gear therewith, a coiled spring supported by said guide, a removable base secured to said cylinder diametrically arranged lugs and pivotal links in connection therewith und adapted to engage a cross-axle spring, substantially as and for the purposes described.

In witness whereof, I have hereunto set myl signature in the presence of the two subscribing witnesses.

IVILLIAM EVANS.

Witnesses:

J. WALTER DoUGLAss, THOMAS M. SMITH.

Commissioner of Patents,

Washington, D. C.

extending and 

